Caerdydd Penarth
| Caerdydd Penarth | |
|---|---|
| County multi-member constituency for the Senedd | |
 Boundary of Caerdydd Penarth in Wales | |
| Principal areas | |
| Preserved county | |
| Population | 220,137 (2024)[1] |
| Major settlements | Cardiff (south and west), Miskin, Penarth |
| Current County multi-member constituency | |
| Created | 2026 |
| Seats | 6 |
| Created from |
|
Caerdydd Penarth (Welsh for 'Cardiff [and] Penarth'; ⓘ) is a six-member constituency of the Senedd (Welsh Parliament; Welsh: Senedd Cymru) used in the 2026 Senedd election. It covers areas in the south-east of Wales, particularly parts of Cardiff, Rhondda Cynon Taf and the Vale of Glamorgan.
It was proposed following the 2026 review of Senedd constituencies, and is a pairing of the two UK Parliament constituencies of Cardiff West and Cardiff South and Penarth. It has a Welsh-only name.
Boundaries
A Senedd constituency comprising the boundaries of the UK Parliament constituencies of Cardiff West and Cardiff South and Penarth, has been proposed by the Democracy and Boundary Commission Cymru for the 2026 election to the Senedd (Welsh Parliament; Senedd Cymru). It was initially proposed using the English name Cardiff West, South and Penarth in September 2024.[2] The pairing was then switched from Cardiff West to Cardiff East and renamed to Cardiff South-east Penarth, and its Welsh name being De-ddwyrain Caerdydd Penarth in December proposals, despite most other constituencies using Welsh-only names.[3] It was later given the Welsh-only name Caerdydd Penarth and its boundaries were reverted back to using Cardiff West rather than Cardiff East in the commission's final recommendations in March 2025.[4] When announcing their candidates, Reform UK used "Cardiff South-west Penarth" instead, based on the English names for the pair of UK Parliament constituencies that form it.[5]
It encompasses parts of the principal areas (counties/county boroughs) of Cardiff, Rhondda Cynon Taf and the Vale of Glamorgan in South Wales. The constituency was established in 2026, following the passing of the Senedd Cymru (Members and Elections) Act 2024. The act legislates electoral reform of the Senedd to create 16 larger "super constituencies", pairing the 32 UK Parliament constituencies in Wales, and using a new fully proportional voting system, with each constituency electing six Members of the Senedd (MSs) rather than one previously.[2]
Members of the Senedd
| Term | Election | Distribution | MS | MS | MS | MS | MS | MS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7th | 2026 |
|
Anna Brychan (PC) |
Kiera Marshall (PC) |
Joseph Martin (Ref) |
Anthony Slaughter (Grn) |
Leticia Gonzalez (PC) |
Huw Thomas (Lab) | ||||||||||
Elections
Elections in the 2020s
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Plaid Cymru | Anna Brychan (E) Kiera Marshall (E) Leticia Gonzalez (E) Malcolm Phillips Mathew Hawkins Tomos Stokes |
36,136 | 41.0 | +21.1 | |
| Reform | Joseph Martin (E)[7] Mark Reckless Robert Thomas Rachel Nugent Finn Paul Campbell Ruth Hancock |
15,525 | 17.6 | +16.9 | |
| Green | Anthony Slaughter (E) Tessa Marshall Rowan Stanger Tavgar Bulbas Max O’Hara Iwan Sinclair |
12,113 | 13.8 | +7.1 | |
| Labour | Huw Thomas (E)[8] Ruba Sivanangam Peter Bradbury Steve Brooks Mutale Merrill Kanaya Singh Laura Rochefort |
10,907 | 12.4 | −25.7 | |
| Conservative | Calum Davies James Hamblin Dominic Davies Judith Child Archie Draycott Eddy Oko-Jaja |
6,818 | 7.7 | −12.7 | |
| Propel | Neil McEvoy[9] Ceri McEvoy |
3,471 | 3.9 | −0.5 | |
| Liberal Democrats | Cadan ap Tomos Irfan Latif Elinor Dixon Barry Southwell Chris Cogger Ashley Wood |
2,260 | 2.6 | −1.9 | |
| Independent | Rhys ab Owen | 414 | 0.5 | New | |
| Communist | Robert Griffiths | 211 | 0.2 | New | |
| Heritage | Rhiannon Morrissey | 198 | 0.2 | New | |
| Majority | 20,611 | 23.4 | New | ||
| Turnout | 88,053 | 56.6 | +6.5 | ||
| Registered electors | 155,629 | ||||
| win (new seat) | |||||
| 2021 notional result [a] | ||||
|---|---|---|---|---|
| Party | Vote | % | Seats | |
| Labour | 35,502 | 48.2 | 4 | |
| Conservative | 14,210 | 19.3 | 1 | |
| Plaid Cymru | 10,913 | 14.8 | 1 | |
| Propel | 3,947 | 5.4 | 0 | |
| Liberal Democrats | 3,083 | 4.2 | 0 | |
| Green | 2,897 | 3.9 | 0 | |
| Abolish | 1,466 | 2.0 | 0 | |
| Reform UK | 490 | 0.7 | 0 | |
| UKIP | 389 | 0.5 | 0 | |
| Independent | 355 | 0.4 | 0 | |
| Freedom Alliance | 237 | 0.3 | 0 | |
| Gwlad | 110 | 0.1 | 0 | |
| Socialist (GB) | 18 | 0.0 | 0 | |
Notes
- ↑ Estimate of the 2021 Senedd election result as if the revised boundaries recommended under the 2026 boundary review were in place
References
- ↑ "Data for the Senedd Cymru constituency areas: 2026". gov.wales. 20 March 2026. Retrieved 19 April 2026.
- 1 2 Hayward, Will (2 September 2024). "The full details of Wales' 16 new constituencies for Senedd elections". Wales Online. Retrieved 28 February 2025.
- ↑ "Proposed Senedd constituency names divides opinion". ITV News. 17 December 2024.
- ↑ Price, Emily (11 March 2025). "New Senedd 'super constituencies' confirmed". Nation.Cymru. Retrieved 11 March 2025.
- ↑ Mosalski, Ruth (25 March 2026). "Reform UK got the names of all the new Senedd constituencies wrong". Wales Online. Retrieved 26 March 2026.
- ↑ Mosalski, Ruth (8 May 2026). "Caerdydd Penarth election results in full: The breakdown of Senedd Election votes". Wales Online. Retrieved 26 March 2026.
- ↑ John, Lucy (25 March 2026). "Reform Wales publishes full list of candidates for the Welsh Senedd election". Wales Online. Retrieved 25 March 2026.
- ↑ Green, Daniel (2 December 2025). "Senedd elections 2026: Who are Welsh Labour's candidates?". LabourList. Retrieved 6 January 2026.
- ↑ "Neil McEvoy chosen as Propel's lead prospective candidate for Caerdydd Penarth in next year's Senedd election". Propel Wales. Retrieved 4 February 2026.